Fig shows a bar of uniform cross section of area `s`. Equal and opposite tensile forces are applied at the ends of the bar. Each force has a magnitude `F`. ABCD is a plane trough the bar and inclined at angle `theta` with the perpendicular to the length of the bar.

Normal stress at the plane which is inclined with the plane perpendicular to the length of the bar is -

Options

A. F/s
B. `F cos theta//s`
C. `F cos^(2)//s`
D. `F//s cos theta`

Answer

C